Start Onboarding your system point of sale POS and Link with Zakat, Tax and Customs Authority Saudi Arabian, Here you can Create and Build a Digital Signature ECDSA Certificate Online OpenSSL (CSR and Private Key) and Compliance XML Files Standard and Simplified) and Compliance CSR to Get Authorizationa and Depending on your place in the onboarding process, create a Compliance CSID (CCSID) or a Production CSID (PCSID). A Production CSID is a CSID that is used by the EGS to call the core e-invoicing production APIs such as reporting, clearance, etc. This CSID is generated by ZATCA CA and returned to the EGS which it can use to invoke the aforementioned APIs, Additionally, the Production CSID is added as a request header and also is used to authenticate and authorize the EGS